Home / 5,188.28-7,159.80-2,830.52

Finding the Fourth Proportional to 5,188.28, 7,159.80 and 2,830.52

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Solution

The fourth proportional to 5,188.28, 7,159.80 and 2,830.52 is: 3,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.28 : 7,159.80 = 2,830.52 : x
  2. Step 2: Convert to fraction form
    5,188.28/7,159.80 = 2,830.52/x
  3. Step 3: Cross multiply
    5,188.28x = 7,159.80 × 2,830.52
  4. Step 4: Simplify right side
    5,188.28x = 20,265,957.10
  5. Step 5: Solve for x
    x = 20,265,957.10/5,188.28
  6. Step 6: Final answer
    x = 3,906.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.